BMJ Open · 2018 · 23 citations · 37 references
ISRCTN53448131; Pre-results.
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The Hospital Anxiety and Depression Scale
A. S. Zigmond, R. P. Snaith · Acta Psychiatrica Scandinavica · 1983 · 45.5K citations
Development and preliminary testing of the new five-level version of EQ-5D (EQ-5D-5L)
Michael Herdman, Claire Gudex, Andrew Lloyd et al. · Quality of Life Research · 2011 · 9.2K citations · Full text
The Richmond Agitation–Sedation Scale
Curtis N. Sessler, Mark S. Gosnell, Mary Jo Grap et al. · American Journal of Respiratory and Critical Care Medicine · 2002 · 3.6K citations